Airtac MKJ Adjustable Cylinder MKJ20X20-10
The AirTAC Airtac MKJ Adjustable Cylinder MKJ20X20-10 is a genuine MK multi-mount cylinder (adjustable stroke), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact. As an MK unit a fixed rod stops the piston rod rotating.
- TypeMulti-mount, adjustable stroke
- SeriesMK (no-rotating)
- Bore20 mm
- Push thrust @0.5 MPa157.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWithout magnet
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MKJ Adjustable Cylinder MKJ20X20-10
The MKJ20X20-10 is an AirTAC MKJ adjustable-stroke multi-mount cylinder: a compact square-body, no-rotating, double-acting cylinder with a 20 mm bore, a 20 mm base stroke and a 10 mm adjustable range. Its square body fixes from six directions and mounts side by side, making it easy to fit actuation where conventional round cylinders will not. At 0.5 MPa it provides about 157.1 N of theoretical push thrust, with a bumper cushioning the stroke over 30-500 mm/s.
This is a genuine AirTAC part. The MK family adds a no-rotating plate, brass bushing and fixed rod, so the rod stays rotationally fixed - ideal for parts that must not twist. As the SKU shows, this cylinder is ordered without a magnet; choose the S-suffix to add one. Operating pressure is 0.15-1.0 MPa (22-145 psi) and media temperature is -20 to 70 C (150 C only with the optional high-temperature seal material). We confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ20X20-10 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ20X20-10 |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | Without magnet |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
How to choose
The 20 mm bore gives about 157.1 N of push at 0.5 MPa; pick a neighbouring bore if your load calls for a different thrust. The MKJ adjustable stroke here is a 20 mm base stroke with a 10 mm adjustment band, fine for trimming end positions on short moves without changing hardware. Double acting powers both the extend and return strokes.
This is the MK (no-rotating) family, where rod rotation is prevented; if that constraint is unnecessary, compare the standard MD family. This SKU has no magnet - the S-suffix variant does. Threads are PT by default with G optional. Respect the short covers by keeping strokes within the bore's table (up to 60 mm for a 20 mm double-acting bore), and send side-load questions to us.
Applications
Small-parts press fit
Press bearings, pins or bushings into small housings with a straight, non-rotating push, trimming the end of stroke within the 10 mm adjustable range.
Index stopper on tight lines
Act as a retractable stopper that squares itself against flat parts on a conveyor, fixed from the frame face that your layout allows.
Bench-top fixture actuation
Fit several MKJ20 cylinders side by side in a compact test fixture to apply controlled 157 N-class pushes at 0.5 MPa without a large actuator footprint.
FAQ
Why choose MKJ over the standard MD family for this 20 mm bore?
MKJ prevents rod rotation via a no-rotating plate, brass bushing and fixed rod, and adds an adjustable stroke - here a 20 mm base stroke plus a 10 mm range. The MD family is the standard double-acting version where rotation is acceptable. Thrust is the same class: about 157.1 N push at 0.5 MPa for a 20 mm bore.
How short is the stroke, and does that limit anything?
This model has a 20 mm base stroke plus a 10 mm adjustable range, well inside the 60 mm maximum for a 20 mm double-acting bore. The cylinder's covers are short by design, so avoid over-long strokes for the bore and confirm overall dimensions and side-load capability from the datasheet.